Is smoking weed healthier than smoking cigarettes?

Actually, one cigarette takes 7 minutes off your life... or so THEY say. Also it is a proven fact that smoking weed is better for you. That's mainly because weed is a natural herb. In cigarettes you have to smoke through all kinds of chemicals to get to the tobacco. Plus there's no nicotine in weed or any other addictive substance. If that wasn't enough you should also consider if weed is SO bad for you then why do they give it as a "cure" to cancer and glaucoma, etc.